giant covalent structures

Question 1

what are giant covalent structures

Answer 1

3D structures made from atoms joined by covalent bonds

Question 2

whats a allotrope

Answer 2

different forms of the same element in the same physical shape

Question 3

whats the property of a diamond

Answer 3

very high MP and BP
very hard
poor conductor

Question 4

whats the property of graphite

Answer 4

very high MP and BP
good conductor
soft

Question 5

whats the property of graphene

Answer 5

very high MP and BP
good conductor
strong

Question 6

what are carbons 3 allotropes

Answer 6

graphene, diamond, graphite

Question 7

how thick is graphene

Answer 7

one atom thick

Question 8

what is the uses of graphene

Answer 8

batteries and solar cells

Question 9

whats diamond used for
graphite
graphene

Answer 9

drill bits
lubricant and in pencils
batteries

Question 10

whats the structure of graphene

Answer 10

A single layer of graphite, one atom thick.

Question 11

whats the structures of diamond

Answer 11

Each carbon atom is covalently bonded to 4 other carbon atoms
The arrangement is described as tetrahedral.

Question 12

whats the structure of graphite

Answer 12

Each carbon atom is covalently bonded to 3 other carbon atoms.
The arrangement is layers of hexagons with weak bonds between the
layers caused by delocalised electrons.